Lofting a signet ring

Hi, I’m trying to loft a series of closed curves. I have checked that they’re closed by using the CloseCrv function. When I loft, I’m not sure what to do with the arrows and when I’ve finished playing with them it gives some crazy shape.

How do I control the shape?

thankssignet.3dm (44.4 KB)

I’m not sure what to do with the arrows

They are to adjust/align the seams and direction of the curves (but you should just draw them correctly in the first place if you know you will be lofting them). See the help page, it has little video’s.

The curves in your file don’t really look like they should be lofted (or at least I don’t get how you intend to loft them). Looks like something requiring some nurbs patches maybe with network surface + other tools.